SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ns-tec.de
SSL/TLS Certificate
SSL/TLS Certificate for ns-tec.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ns-tec.de
- Valid from
- Jul 12, 2026
- Valid until
- Oct 10, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 055E45068EB7A741FFD1488A438F23870E24
- SHA-256 fingerprint
- AA:69:2F:C9:AE:8E:E5:EA:E6:A1:DC:6B:E9:2C:91:2C:DD:CF:07:AC:21:C5:13:BF:52:94:06:AB:0B:CE:73:E5
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ns-tec.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ns-tec.de continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.